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1987～1989年,对不同品种不同生育时期在中度水分胁迫下抗旱性比较试验结果表明,抗旱性较强的豫玉3号等品种,在干旱条件下,通过增加气孔阻力和脯氨酸含量等以减少水分丢失,提高渗透调节能力,缓解干旱引起的原生质膜伤害,而且叶绿素破坏和硝酸还原酶活性降低较少,因而生长发育和产量形成受干旱影响比不抗旱的品种新黄单85—1和白鹤等较轻。
From 1987 to 1989, comparative experiments on drought resistance of different varieties at different growth stages under moderate water stress showed that under drought conditions, Yuyu 3 with stronger drought resistance could increase stomatal resistance and proline content And so on to reduce the loss of water and improve the ability of osmotic adjustment to alleviate the damage of protoplast caused by drought, and the reduction of chlorophyll destruction and nitrate reductase activity is less, so the growth and yield formation is affected by drought than the drought-resistant variety Xinhuangdan 85- 1 and crane and other lighter.